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Video 55: How to measure 12V, 24V or 100V DC voltage¶
Learn how to use ESP32 to measure DC voltage with this detailed video tutorial from Robojax.
Introduction to the ESP32 Starter Kit: An overview of. the ESP32 Starter Kit from SunFounder, highlighting the features of the ESP32 microcontroller with built-in Wi-Fi and Bluetooth.
Project Overview: Explanation of how to measure any DC voltage using a voltage divider circuit and the ESP32. Includes a discussion on the need for and use of two resistors to create a voltage divider.
Voltage Divider Circuit: Detailed explanation of how to use two resistors to safely measure higher voltages. Includes calculations for selecting appropriate resistor values.
Arduino Code Explanation: Comprehensive guide on the Arduino code used for voltage measurement. Covers setting up the code, initializing the serial monitor, and using functions to calculate and display voltage values.
Selecting ESP32 Board and Port: Step-by-step instructions on how to select the ESP32 board and COM port in the Arduino IDE, along with troubleshooting tips for identifying the correct port.
30V Voltage Measurement Demonstration: Practical demonstration of measuring 30V using the ESP32. Shows the setup, connection, and reading of voltage values on the serial monitor. Also covers averaging multiple measurements for more stable readings.
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